Kinetics of Carboxylic Acids Formation During Polypropylene Thermooxidation in Water Saturated with Pressurized Oxygen

In this paper we study in detail the products formed during the process of water-assisted thermal oxidative decomposition (TOD) of polypropylene in the presence of pressurized oxygen. A set of techniques has shown that the main decomposition product in such a process is acetic acid with small amounts of other carboxylic acids (formic, propionic, succinic). The kinetics of carboxylic acid formation is studied by means of gas chromatography-mass-spectrometry as well as capillary electrophoresis, and the possible mechanisms behind the products formation are discussed. The role of water is considered based on the results obtained from substituting H<sub>2</sub>O with D<sub>2</sub>O in TOD. Compositions of residual oligomeric fractions as well as gas products are analyzed.

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Publication Details

Journal
Polymers
Published
2025-10-07
DOI
https://doi.org/10.3390/polym17192696
Citations
1
Primary Topic
Polymer crystallization and properties
Type
article
Field-Weighted Citation Impact
0.61

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article

Kinetics of Carboxylic Acids Formation During Polypropylene Thermooxidation in Water Saturated with Pressurized Oxygen

S.V. Stakhanova, Vadim V. Zefirov, Ivan A. Godovikov, Marat O. Gallyamov et al.
1 citations
Polymers
Polymer crystallization and properties
0.61
article

Kinetics of Carboxylic Acids Formation During Polypropylene Thermooxidation in Water Saturated with Pressurized Oxygen

S.V. Stakhanova, Vadim V. Zefirov, Ivan A. Godovikov, Marat O. Gallyamov, Polina S. Kazaryan, A. G. Terentyev, A. V. Dudkin, A. I. Stakhanov, Alexei R. Khokhlov, Mikhail M. Ilyin, Elena P. Kharitonova, Elizaveta V. Shmakova
article en
1 citations

Abstract

In this paper we study in detail the products formed during the process of water-assisted thermal oxidative decomposition (TOD) of polypropylene in the presence of pressurized oxygen. A set of techniques has shown that the main decomposition product in such a process is acetic acid with small amounts of other carboxylic acids (formic, propionic, succinic). The kinetics of carboxylic acid formation is studied by means of gas chromatography-mass-spectrometry as well as capillary electrophoresis, and the possible mechanisms behind the products formation are discussed. The role of water is considered based on the results obtained from substituting H<sub>2</sub>O with D<sub>2</sub>O in TOD. Compositions of residual oligomeric fractions as well as gas products are analyzed.

PolymersVol. 17(19)
D. Mendeleyev University of Chemical Technology of Russia (RU), Lomonosov Moscow State University (RU), A. N. Nesmeyanov Institute of Organoelement Compounds (RU)
Ministry of Science and Higher Education of the Russian Federation
Openalex Percentile: Top 30%
Polymer crystallization and properties
0.61
DOIOpen Access PDFOpenAlex
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Kinetics of Carboxylic Acids Formation During Polypropylene Thermooxidation in Water Saturated with Pressurized Oxygen — S.V. Stakhanova, Vadim V. Zefirov, et al. · Polymers (2025) | TGRS Research Map | TGRS